Guillaume Joe Pegna, M.D.
NPI 1841670361ActiveIndividual· Internal Medicine, Medical Oncology· Portland, OR
Internal Medicine, Medical Oncology (M.D.) with University Professional Services, practicing in Portland, Oregon. Their prescriptions cost Medicare Part D more than their services did: $281,213 for 225 claims, against $40,326 paid for services in 2024. Exelixis Inc. was the largest of 3 companies reporting payments in 2025, $11,805 in all, mostly consulting fees. Lists Ohsu Hospital and Clinics and 1 other hospital as hospital affiliations.
Overview
| NPI | 1841670361 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 1, 2015 |
| Last updated in NPPES | Aug 16, 2021 |
| Certified by provider | Aug 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | MD204764 | OR |
| Internal Medicine | 207R00000X | MD046068 | DC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 136 |
|---|---|
| Services billed | 528 across 9 procedure codes |
| Paid by Medicare | $40,326 |
Part D prescriptions in 2024
| Prescriptions (claims) | 225 · 237 30-day fills |
|---|---|
| Patients | 45 |
| Total drug cost | $281,213 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- University Professional ServicesBeaverton, OR · 1,724 clinicians
Hospital affiliations
- Ohsu Hospital and ClinicsPortland, OR
- Salem HospitalSalem, OR
Industry payments (Open Payments)
- 2025$11,805 · 24 payments from 3 companies
- 2024$403.21 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exelixis Inc. | $6,333 | 18 |
| Tersera Therapeutics LLC | $4,072 | 5 |
| Novartis Pharmaceuticals Corporation | $1,400 | 1 |
What the 2025 payments were for
- Consulting Fee$4,830 · 2 payments
- Travel and Lodging$3,246 · 9 payments
- Honoraria$2,625 · 1 payment
- Food and Beverage$1,104 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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